Automatic machine for the manufacture of unwoven tubular fabric upon a longitudinally-moving mandrel or former.



E. D. C. BAYNE & L. A. SUBERS. AUTOMATIC MACHINE FOR THE MANUPAGTURE 0F UNWOVEN TUBULAR FABRIC UPON A LQNGITUDINALLY MOVING MANDREL on roRMBR.

APPLIUATIONFILBD APILZS. 1909.

Patented May 2 1911. a SHEETS-SHEET 1.

wf 153 Y IIMIIIUIIWIHV lllllllllllll Illl IIIIIHII MII E. D. C. BAYNE & L.V A. SUBERS. AUTOMATIC MACHINE FOR THE MANUFAGTURE 0F UNWOVEN TUBULAR FABRIC UPON A LONGITUDINALLY MOVING MANDREL OR FORMER.

APPLICATION FILED APILZB, 1909. 991,266. Patented May 2,1911.

3 SHEETS-SHEET A2.

E. D. C. BAYNE & L.- A.y SUBBRS.. AUTONIATIO MACHINE POR THE MANUFACTURB 0F UNWOVEN TUBULAR FABRIC UPON A LONGITUDINALLY MOVING MANDREL 0R FORMER.

APPLIOATION FILED 23.23. 1909.

Patented May 2, 1911.

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UNrr-ED stragrns rrnnr orrion.

EUGENE D. C. B AVYNE AND LAWRENCE A. SUBERS, OF CLEVELAND, OHIO.

AUTOMATIC MACHINE FOR THE MANUFAC'JQUR 0F UNW OVEN TUBLAR FABRIC UPON yA LONGITUDINALLY-MOVING' MANDR'EL OR FORMER.

Specification of yLetters Patent.

Application filed April 23, 1909. Serial No. 4913353.

To alt 'whom it may concern.'

Be it known that we, EUGENE D. C. BAYNE and LAWRENCE A. SUBERS, citizens of thev United Statesfand residents of Cleveland. inthe county of Cuyahoga and State of Ohio, have invented certain new and useful improvements in automatic machines for the manufacture of unwoven tubular fabric upon a longitudinally-moving mandrel or former, of which `we hereby declare the foll lowing to be a full, clear, and exact description, such as will enable others skilled'in the art to which it lapperta-ins to make and use the same.

The objects of the invention are to provide means for manufacturing a'n` unwoven tubular fabric such as has been previously described in our Letters Patent No. 885,219, bearing date of April 21st, 1908.' This fabric is composed of .coated adhering cords or threads closely applied in parallel rows, which are arranged in adhering layers in which the rows in one layer are longitudinally applied in the fabric, layers in which the rows tially or spirally applied.

lin our previous applications for fabric making machines Serial Nos. 467,621 and are circumferen-` 479,488 the threads have been applied re- Aspectivelv to a rotating mandrel by means of longitudinally7 moving thread appyling devices, means of thread applying devices which have both a longitudinal movement relatively to the mandrel and are simultaneously rotated about the same.

The object of this invention as distinguished from those disclosed in the other applications is to impart a longitudinal movement' to the fabric itself in connection with thread laying devices which have no longitudinal movement.

Furtherobjects are to provide a longitudinally moving mandrel preferably hollow uponwhich the fabric is applied, and a device for giving a continuous re lar move.- ment thereto, the mandrel being v.of suchl a character that indefinite lengthsl of tubing such as hose can be manufactured thereon.

Further objects are to providea mandrel of such a character tha-tit cali be passed through a. vulcanizing device, and the .fabric vulcanized thereon by the usual method after completion.

Further object-s are to provide instrunien alternating with through, when internal and to a stationary mandrel byy Patented May 2, 1911.

i talities for -applying i'nitial coati-ngl or rel lining of calendered rubber to the man which should have a smoothsurface for this purpose, and also to provide instrumentalities for applying a longitudinal layer of parallel rows of cord or vthread to the mandrel, in such a. manner as to com letely cover the circumference of the man rel or former with thelayer, and with the several rows in close engagement so as to leave no interstices between them. y p l Further objects are 4to provide instrumentalities for applying the circumferential or spiral rows of threads, in close contact to form alternating layers with the longitudinally disposed rows of threads.

Other features of the invention have reference to instrumentalities providin a flow of unvulcanized liquid or viscous ru ber under pressure to each thread and layer in advance of the action of the device for applying the subsequent layerf of thread, so that each thread shall be completely in-l closed in rubber and all threads/'and .layers shall be separated from frictionalcontact with each other, and whereby an abundance of rubber will be supplied and incorporated between the layers, so that when vulcanized the fabric will be flexible vand no minute opening will be left for possible blowing I pressure is applied to the tubing. y

Other features relate to instrumentalities for applying the calendered rubberin strips either spirallyv or longitudinally on the mandrel or former and between the alternate layers of threads, and means'for storing the calendered and unvulcanized rubber in rolls with intermediate strips of non-adhesive material and-for separating the rubber and` non-adhesive strips at the time of applyingthe rubber to the mandrel or alternate layers of threads'and also to provide operating.- means therefor. y

The invention further includes the ar.- rangement of grouping of the thread applying director wheels in such a manner as to completely cover the outer circumferential surface of the hollow mandrel with the `threads ofthe longitudinal layer, and also includes supports for the director wheels which are revolved about theA mandrel to of threads, andl also mechanism adapted t0 "lay, alternating spiralflayers different apply the spiral or circumferential layer no A angles so that theywill not only cross the longitudinal layers at an angle but also will cross each other at an angle.

The'invention also comprises the operating means for the several instrumentalities whereby their movements are rendered automatic.

It also comprises supporting means and propelling means for the mandrel or former and operating means therefor.

ln this machine the character of the mandrel can be such to be readily handled in the manufact-ure of hose of any-required length and can be made suitable for introduction into a vulcanizer and in sectional parts attachable together 'as fast as introduced into the machine, or 'the mandrel can be made of flexible fabric, metallic or otherwise, which can be coiled in a continuous manner in asuitable vulcanizing device of any kind, after thel fabric has been completed thereon. It is also possible with this type of machine to alternatethe layers of longitudinal and spiral rows of threads in any desirable manner; to lay the calendered rubber strips longitudinally or spirally in any desired position in the fabric, and to lay intermediate or external layers or coatings of any desired character upon the mandrel. ln illustration of which it may be said that a'layer of ordinary woven fabric can be laid' intermediate between any two layers of. rows of threads to absorb sudden or torsional strainsupon the tubing and exterior protecting wrappings of any kind can also be advantageously applied therewith.

The invention further consists in the combination and arrangement of the various n arts and construction of details as exemplitied in the accompanying drawings,here inafter more particularly described and speciiically pointed out in the claims.

ln the accompanying drawings, Figure l' is a plan view of a device showing at the left of the tigure a clutch device for operating the mandrel propelling mechanism which pulls it through the machine and is also adapted to the introduction of the mandrel continuously in sectional parts; Fig. la isa plan view of this propelling mechanism and is in continuation of Fig. l; Fig. 11 is a plan View of a modified forni of propelling mechanism adapted to introduce the mandrel from the rear and also adapted to the introduction of the mandrel continuously in sectional parts; Fig. 2 is a side elevation of the machine; FigQB is a transverse section of the device on line A, A Fig. 2, showing mandrel guides and supports;I Fig. et is a transverse section onv line B, B Fig. 2, showing devices for applying the calendered. rubber strips to the mandrel; Fig. 5 is a vertical elevation of th device shown in 1b for propelling the mandrel; Fig. @is an edge view of the device for applying such tension as may bc required in laying the cord. or thread upon the mandrel; Fig. 7 is'a side elevation of the tension device; Fig. 8 is a transverse section on -line D, D Fig. 2, showing the radially arranged director wheels which are employed to apply the longitudinalv rows of threads upon the mandrel; Fig. 8 is a transverse section on line E, E Fig. 2, showing ,director wheels and support therefor mounted for rotation about the mandrel to apply the spiral rows of thread; Fig. 9 is a transverse section on line C, C Fig. 2, showing the device for applying rubber under pressure to the mandrelv or to anyone of the coatings thereon; Fig. 9A is a central section ofthe rubber applying ring; Fig. l() is a transverse section through line fc, Fig. la showing depressible supports for the feed screws and the carriers and guides for the propelling d'ogs; Fig. 11 is an enlarged View of the device for laying thc calendcred rub ber strips longitudinally upon the mandrel; Fig. 12 is an elevation of abutting portions of the mandrel showing" attaching means therefor; Fig. 13 is an enlarged side elevation of the feed screw support showing cani surfaces by means of. which the support is depressed by the carrier when passing; Fig. i4 is a side elevation of a iiexible unwoven tube such as is produced-by this machine; Fig. 15 is a longitudinal section of a preferred form of rubber applying device; Fig. 1G shows an enlarged portion of the same; and Fig. 1T is an elevation of a modiiied form of a director wheel adapted to apply the thread formed to a rectangular section.

These views illustrate an operative form of the machine and may be described as follows:

l is the mandrel or former which is designed to pass centrally through the machine as the fabric is manufactured thereon.

Means are employed for giving a continuons forward movement to the mandrel. A preferable manner of propellingr the mandrel from the rear is shown in Figs. il and 5 where 70, 71 are rollers engaging the inandrel on opposite sides, 72 and 73 are a worm and gear device which powerfully rotates the'roller 70. The roller 71 can bc adjusted by nieansof a screw-74t to obtain any pressure desired upon the mandrel. In Figs. l and l this pressure is shown to be obtained by a pulling movement, and can be employed with a mandrel of greater length than the length of the hose or tubing to be made as tor instance a 10 to 50 ft'. section.

ln the device shown in Fig. la annular ratchetgrooves 2, 2 are cut in the mandrel, which are engaged by pivoted dogs 3 and 4 respectively, and the notches occur at intervals greater than the length of the hose to be made. Screws 4, 4 propel these ratchet dogs so that when one dog engages an ad justable set-collar 5 on the shifter rod 6 the reversing mechanism shown at 7, 7 will reverse the screws through the medium of connecting gears S, 8 and When/ traveling backward the pivoted dogs will slide on the mandrel without engagement therewith, until another set of grooves' are encountered. This action is illustrated in Figs. 1L and 1G and since the screw rods are necessarily very7 long they are supported by means of depressible forks 9, 9 which are moved back by means of the carriers 10, 10 upon which the pivoted dogs are mounted and the cam edges 11, 11 of the depressible supports 9, 9.

vRollers 12, 12 such as are shown in Fig. 4 can be employed in any desired position in -the machine to support themandrel.

ln Figs. 1 and 2, 13 is. a bed plate, 14, 14 terminal bearings in which the rollers l2, 12 are mounted upon adjustable stems 15,15.

The first operation shown in constructing the tubular fabric is that of applying the unvulcanized calendegjed rubber in strips to the smooth mandrel, and' is accomplished by means of a device such as shown in Figs. 1, 2 and 3. mandrel by meansI of the spur gears 17 and 1.8 and dri ve shaft 19. Outside of this drum isshown stationary drum 21 having an internal gear 2() thereon. pinion 22 engages the internal gear and is mounted upon the shaft 23 Ain the rotatable drum 1G. Upon this shaft is also mounted a spool 24 upon vwhich a continuous strip of oiled paper or other non-adhesive material 25 is wound. The oiled paper together with a continuous strip of calendered rubber 26 is first rolled upon the opposite roll 27 mounted upon a second shaft s in the drum 16, in such a manner that the rubber and paper alternate. The rubber strip is wound upon the mandrel and the paper strip is passed* over to the spool 24. The result of which action is that the rubber strip is spirally wound about the mandrel as the mandrel is f ed through the machine, and the paper is rolled upon the paper spool 24, while both rolls revolve about. the mandrel. The rate of motion as taken from shaft 23 is adjusted by means of friction disks D, D. The edges of the rub ber strip or band are preferably beveled so as to overlap and form smooth joints.

Before applying the lirst layer of threads N it is essential that the layer of unvulcanized calendered rubber should be coated with a predetermined amount of fluid rubgas when the vulcanization takes place` and' the consequent formation of pockets or open- Here 1 (l is a drum rotatable about the ings in the rubber. Any suitable means for Y ber a gravit-y device or a device shown in Figs. 1, 2, 9 and 9a can be used. Here a force pump 28 is shown mounted upon a suitable standard 29, and' a pipe leads there-- from to a hollow ring 30. The rubber is forcedthrough'openings 31, radially disposed in the inner edge of this ring, as shown in Fig. 9.a,.or one continuous annular opening 32 can be employed as shown in Fig. As soon as the soft coating of liquid rubber is applied the longitudinally disposed layer of closely engaging rows of threads ll'is laid thereon, as shown in Figs. 1, 2, 8 and 14. Here 33, 33 are grooved d-ii rector wheels over which a multiple number of prepared threads are passed direct-ly to the mandrel and coating thereon; These director wheels are radially arranged and are formed preferably in groups or circles, one group alittle in advance of the other so as to finally cover the entire surface of the mandrel or former. Suitable support-s 34, 34 forthe director wheels are secured in a stationary ring 35, and to this'support are secured as many brackets i36, 36 (only one of which is shown in Fig' '8 and only three in Figs. 1 and 2) upon which are secured the spools 37 and tension devices 38. The tension devices are shown in Figs. G and 7 to comprise groovcd rollers 38 and 39, one of which is rotatable. Over these rollers the threadpasses through a guide G and additional friction is obtained by means of the spring pressed roller 41, which enters one of the grooves in the roller 38. After the first longitudinal layer 'is applied a second coating of fluid rubber is applied by a similar rubber laying device 30 and pump 28, or by the device shown in Figs. 15 and 1G, or other suitable device. Next a spiral or circumferential layer M is applied by means of` similar director 4wheels 4.4 and 45 secured within the rotatable drum 46. See Figs. 1 and 2. In this device the spools 47, tension wheels 48, guide wheels 49 and dirpctor wheels 44 and 45 are mounted upon the in- -side of the rotating drum 46 and are all caused to rotate about the mandrel through the agency of the spur gears 50 and 51 and drive shaft 19- previously described. The drum ,46 is mounted in a 4standard 52. A third coating of rubber is then applied by means of a similar' coat-ing ring 30 and pump 28 after which a` second spiral layer L can be applied thereon at an angle to and in the reverse direction to the first laid circumferential or spiral layer. This'is accomplished by means of a rotatable drum 5.5 aud spur gears 56 and 57 and idler 58 to reverse the movement. The director wheels 44 and 45 seV and tension devices 4:8 and 49 and spools 4:7 are smilardn all respects to the devices just described for laying the first spiral layer. rEhe director wheels for spiral laying are preferably oppositely placed so as to lay two threads at once, but any desired number of director Wheels can be employed for laying the spiral layers.. Following the laying of the last layer of threads another coat of liquid rubber should preferably be applied and the same sort of rubber applicator and pump 2S can be used for this purpose. 5in outer coating of spirally or longitudinally laid calendered rubber or layer of any material can then be applied or an outer vcoating of any character offabric.

The same devices as previously shown in Fig. 8 can be employed foithis purpose if desired. can be used for wrapping the tube preparatory to vulcanizing` the same.

ln Fig. 11, a device'for applying the calendered rubber longitudinally upon the fabric formed upon the mandrel is shown. llore S0, 80 are geared rollers engaging the mandrel over which the rubber band passes` 8l, 81 are the winding rollers for paper and- 82, 82 are the rollers over which the rubber and paper are wound for storage.

In Fig. l2 the sections of the hollow mandrel l are attached together by means of a hollow plug P driven tightly or screwed into one section, and ay Wedge lV driven through openings in both shaft and plug in the other section in which the plug is a close sliding fit.

ln Fig. 11i is represented a section of our tubing used as a hollow iiexible mandrel` portions ofthe several layers being removed to show the arrangement of alternating layers of spiral and longitudinal rows of threads lettered L, M, and N respectively.

The former or mandrel on .which the fabric is produced if rigid can be made in sections connected together when introduced into the machine as shown in Fig. l2 and if cxible may be maintained in an expanded condition 'by means of pneumatic or hydraulic pressure or may be filled out with sonic solid but flexible substance which will give the mandrel sufficient hardness and' rigidity, so that it can keep its shape while the fabric is being constructed thereon and can be operated in ,the machine without difiiculty. A pcculiarity of our unwoven fabric previously patented and described is that it will not only become as rigid as a bar of iron when subjected to internal pressure but will remain perfectly straight under extreme internal pressure without twisting owing to the perfect equalization of tensions therein, and hence is peculiarly adapted for use as a flexible mandrel or former upon which to manufacture tubular fabric.` As

Vsoon as 'the tubular fabric is completed andv lt is obvious that the same devices` ready to vulcanize, a portion of, or all of the internal pressure can be released, and steam or lheated air under pressure can be admitted in its place, until an equal degree of expansion has been obtained, and the intel-nal heat combined with the application of external heat in the vulcanizer will produce perfect Vulcanization. As soon as vulcanized the pressure can be released, and the vulcanized fabric can be stripped from the vmandrel by the introduction of air under pressure between the flexible mandrel and fabric or by anyconvenient method. Any desired forms of steam connections can be made. j

A flexible but stiffer and more rigid fabric can be formed of the reinforced thread described in oui` Letters Patent No. 918,414 granted April 13th, 1905). `The machine is adapted also to form the fabric from coated thread of any character whether laid as single threads or threads combined edge t0 edge to form bands and applied inthe manner of applying the calendered bands or in any convenient manner. The threads could all pass through the rubber tanks or receptacles for holding rubber under -pressure and issue with an external coating of any desired thickness before laying, as shown in Figs. l5 and 1G. Also the amount of rubber required for coating reuld be lessened, and the interstices between the circular threads would be much diminished in size if the threads were flattened prior to laying them in the fabric. It is however essential that the threads when laid should be inclosed in rubber, and it is optional whether the threads are provided with their coatings prior to, or at the time of, laying them in the fabric. l-t is also much easier to flatten the several threads prior to laying them in the fabric than to crush the fabric and to compress it into compact shape after it has been constructed and before vulcanizing and there is less danger of injury to fabric.

ln Figs. 15 and lf a circular tank Qw" filled with rubber under controllable pressure 'from a piston O or from gravity is provided with openings Q through which the rubber is forced in jets upon the mandrel.

The thread T may pass through the protected opening T into the tank and pass out of the somewhat larger opening T2 iinmediately to a director wheel 33. The thread in passing through" thc opening T2 will be coated with the rubber and'lieuce will be even better adapted to be entirely embedded in the rubber coat than if it should be fed dry to the director Wheel. In this manner two objects would be attained that of coating he thread, and coating the layer below, thus insuring a plentiful amount of coating.

Obviously either method could be employed, and the thread alone coated, or the ender mandrel coated, or both methods could be employed simultaneously. A valve V can be used to close these openings when not in use. Having `described the invention what we we claim as new and desire to secure by Let# ters Patent is v l. In an unwoven fabric making' machine, in combination with a longitudinally movable mandrel, a propelling means therefor,

a device forapplying a preliminary coat-ing' of calendered band rubber to the mandrel, a device for applying a coating of fluid rub. ber thereon, a subsequently acting device for ap lying longitudinally laid parallel rows o threads'to the moving mandrel, a subsequently acting device for applying a" coating of spirally laid parallel rows of threads thereon, a device for applying a coating ofv fluid rubber thereto, a device for applying a coating ofspirally laid parallel rows of threads at an angleto the first laid layer of spirally laid threads, said devices adapted to operate automatically to lay said layers and coatings upon said mandrel as' it is propelled through the machine.

2. In an automatically acting machine, the combination with a longitudinally movable mandrel, of a device rotatable about the mandrel vfor applying a coating of calendered rubber in a continuous band thereon, a device for subsequently applying a coating of fluid rubber thereon, under pressure, director wheels for applying longitudinal rows of coated threads thereon to form a layer completely inclosing the mandrel, said director wheels being arranged in staggered rows, a circular support and guides for said director wheels, a deviceA for coating said longitudinal layer of threads, director wheels rotatable circumferentially about said mandrel and adapted to apply coated threads in parallel spiral rows thereon, a revoluble lsupport for said last named director wheels, thread guides in said revoluble support, a device for applying fluid rubber t0 said spiral layer, a similar rotatable device and director wheels for applying a second spiral layer of coated threads there'- on, said' second layer being wound at an angle to said first named layer, and a device for applying an exterior coating, a propelling device for the mandrel and means for rotating said aforesaid revoluble parts in unison at a predetermined rate of speed.

' 3. In a device for applying aca-lendered band of rubber toa longitudinally moving mandrel, the combi-nation with the mandrel` of a standard, a support therein revoluble about said mandrel, an internal gear in said standard, a gear shaft and a roller thereon adapted to hold a nonadhesive band,- a tension device therefor, and an opposite] y placed roller in said support upon which said cal- With an intermediate band of nonadhesive" rubber band can be wound together .I

material, the-said geared'lroller adapted to rec'eive said nonadhesive band, and the Inan-v drel adaptedfto receive the calendered rubber band .as said mandrel moves forward, and means for rotating said revoluble support and for giving a` longitudinal. movement to said mandrel.-

4. I n a device for laying arubber band in spiral rows upon a mandrel, a ixed stand ard, a rotatable supportk thereon, an internal gear in said standard, spaced rollers on said revoluble support, one adapted to receive a rubber band coiled together'with an intermediate nonadhesive band, and 'the other adapted to receive the nonadhesive band as the rubber band is received upon the mandrel, a gear and gear shaft, upon which the receiving roll for the nonadhesive band-is. mounted, said gear engaging with said internal' gear and means for rotating said revoluble support.

5. In a device for applying a rubbereoating under -pressure to a mandrel, an annular tank, provided with perforations arranged circularly therein, `a pressure device and means for adjusting the pressure in said pressure device, and means for giving a longitudinal movement to said mandrel.

6. In a device for applying rubber coating under pressure to a mandrel, an annular tank, provided with perforations, arranged eirclarly and adapted to discharge the r'ub- I ber upon the mandrel, a plunger andcylinder and adjustable weight therefor, and a controlling valve placed between said cylinder and said tank.

A7. In a device for applying a rubber coating under pressure to a mandrel, the combination with the mandrel, ofan annular tank provided with circularly arranged openings, for the discharge of therubber upon the mandrel, a pressure device therefor', a series of director wheels adapted to apply threads to said mandrel and located in the rear of said rubber tank, and supports for said parts.

8. In a device for applying a rubber coating under pressure to a mandrel and for laying a coating of longitudinal rows of coated threads upon said mandrel, an annu-l ranged means for discharging the rubber upon said mandrel, a pressure device there lfor, director wheels adapted to apply coated threads longitudinally upon said mandrel in the rear of said rubber tank, said rubber tank provided with openings through which said threads may be passed to acquire a coating of rubber prior to passing under said director wheels, and supporting .devices for said parts.,

9. In a device for applying coated threads to.a mandrel, an lannular tank for rubber, a pressure device therefor, said tank provided "with circularly. arranged openings,` a series 115 lar rubber-tank provided with annularly arlayersl i .c /r f *Y lrj combination with a mandrel, a roof director wheels, over which said coated threads are adapted 'to pass, said circularly arranged openings adapted to receive said ,threads as they pass through said tank, and to 4provide a coating means therefor, and supports for said tank and director wheels and mandrel.

10. In a device for applying a coated thread to a. mandrel, the combination with the mandrel, of a rubber container, a pressure device therefor, said tan-k provided with an opening for thepassage of the'thread therethrough, said openings being of larger diameter than said thread, whereby said thread will receive a coating as it passes therethrough, a director wheel adapted to apply said coated thread'upon the mandrel, means for supporting said tank and director wheel. A

,11. In mechanism for applying spiral layers of coated threads in opposite directions and at different angles upon a longitudinally moving mandrel, a support and a propelling means for the mandrel, a standard, a rotatable director wheel support therein, a main shaft, engaging gears on said shaft and rotatable director wheel support, director and guide Wheels and spools pivotcd in said support, and a second stationary standard and l'rotatable director wheel support therein, gears upon said lmainshatt and said second rotatable support, and an intermediate idler adapted to engage with 'the same, director and guide Wheels pivoted in said second rotatable support and spools therefor, and an intermediate device between said rotatable support for apply'gig/L coating of rubber intermediate/ot said tatable director Wheel support, revolublc around said mandrel, director wheels therein, a'second rotatable support adapted to revolve in the opposite direction about said mandrel, director wheels therein, means 'for revolving them ,in opposite directions about said mandrel, and means tor giving a longi- .tudinal movement to said mandrel.

a device for applying a layer et parallel rows of\threads longitudinally thereon, a` device for applying a spiral layer of parallel rows of threads thereon, said last named device rotatable about said mandrel and a device 'for applyin(r a coating of fresh rubber to said threads, whereby said threads are embedded in rubber, and whereby an intermediate coating of rubber is supplied between said layers, and means for giving a longitudinal movement to said mandrel during the rotation of the means for applying the spiral layers.

14.*The combination with a mandrel, or director Wheels adapted and arranged to apply a complete layer of longitudinally an ranged rows of threads to a mandrel, di rector wheels and a support therci'or, revo 'luble about the said mandrel adapted to apply a layer of threads in parallel spiral rows about said mandrel, and director wheels` and a support therefor rcvolul'ile in the opposite direction about said mandrel adapted tol apply a layer of threads iu parallel spiral rows upon said first named spiral layer in, the opposite direction, and means for rotat# ing said revoluble supports in the opposite direction, and means for applying coatings of rubber intermediate o't said layers, and means t'or giving a longitudinal movement to said mandrel.

15. The combination with a mandrel of means for applying a spiral layer of ad-Y hcsive threads thereto, means orailiplying thereon a spiral layer/oi'idhesive threads ruiminggrinthe/olaosite direction to the first nfrud spiral layer, means for coating the threads in the several layers prior to applying the succeeding layer, and means for moving said mandrel in a longitudinal direction, during the application ot the spiral layers.

ln testimony whereof, we' hereunto set our hands this 21st day ot' April 1909.

EUGENE l). C. liAYNE. Y LAWRENCE A. SUBERS. In presence of- 13. The combination with a mandrel, of

R. F. LA Gamin, W. T. OsnonN. 

